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A viscous damper based on the principle of fluid momentum reflection

A viscous damper and fluid momentum technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problem that the piston is difficult to return to the initial equilibrium position accurately, and achieve the effect of suppressing reciprocating vibration

Active Publication Date: 2019-07-26
CHANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the liquid damper in the prior art realizes variable damping, it still has certain defects, that is, it is difficult for the piston to accurately return to the initial equilibrium position after the external force disappears.

Method used

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  • A viscous damper based on the principle of fluid momentum reflection

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Embodiment Construction

[0015] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0016] See figure 1 As shown, a viscous damper based on the principle of fluid momentum reflection of the present invention includes a damping cylinder body 11, end covers A3 and B4 installed at both ends of the damping cylinder body 11, a symmetrical piston module A and a symmetrical piston module B , The spiral compression spring A7 installed on the end cover A3, the viscous fluid 12 installed inside the damping cylinder body 11, and the spiral compression spring B8 installed on the end cover B4.

[0017] The symmetrical piston module A and the symmetrical piston module B are anti-symmetrically installed inside the damping cylinder body 11 and can slide freely along the inner wall of the damping cylinder body 11.

[0018] The symmetrical piston module A includes a piston A5 and a piston rod A1. One end of the piston rod A1 is mounted on the piston A5, a...

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Abstract

The invention discloses a viscous damper based on the fluid momentum reflection principle, and belongs to the field of liquid damper vibration isolation. The viscous damper comprises a damping cylinder body, an end cover A, an end cover B, a symmetric piston module A, a symmetric piston module B, a spiral compression spring A, a viscous fluid body and a spiral compression spring B, wherein the spiral compression spring A is arranged on the end cover A, the viscous fluid body is arranged in the damping cylinder body, and the spiral compression spring B is arranged on the end cover B; fluid reflection throttling holes which are simply-connected uniform-section circular through holes are formed in the symmetrical piston module A and the symmetrical piston module B, and each fluid reflection throttling hole is composed of n radial straight channels and (n +1) axial straight channels, wherein n is an even number greater than or equal to 1; and the length of each axial straight channel is atleast five times larger than the length of each radial straight channel. The viscous damper has a stable equilibrium position and can realize damping force regulation by means of fluid momentum reflection.

Description

Technical field [0001] The invention belongs to the field of liquid damper vibration isolation, and particularly refers to a viscous damper based on the principle of fluid momentum reflection. Background technique [0002] The liquid damper is an intelligent damping instrument. The existing liquid variable damper generally installs a piston in a working cylinder full of viscous fluid, and changes the damping force by changing the working gap of the fluid flow. Although the liquid damper in the prior art realizes variable damping, it still has certain defects, that is, it is difficult for the piston to accurately return to the initial equilibrium position after the external force disappears. Therefore, it is of great value to design a liquid variable damper that can accurately return to the initial equilibrium position. Summary of the invention [0003] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F13/00F16F9/34
CPCF16F9/3405F16F13/007
Inventor 李晓艳班书昊王知鸷
Owner CHANGZHOU UNIV
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